public static Enumerable select()

in src/main/java/net/hydromatic/linq4j/EnumerableDefaults.java [1408:1440]

• 29 lines of code
• 2 McCabe index (conditional complexity)

  public static <TSource, TResult> Enumerable<TResult> select(
      final Enumerable<TSource> source,
      final Function2<TSource, Integer, TResult> selector) {
    return new AbstractEnumerable<TResult>() {
      public Enumerator<TResult> enumerator() {
        return new Enumerator<TResult>() {
          final Enumerator<TSource> enumerator = source.enumerator();
          int n = -1;

          public TResult current() {
            return selector.apply(enumerator.current(), n);
          }

          public boolean moveNext() {
            if (enumerator.moveNext()) {
              ++n;
              return true;
            } else {
              return false;
            }
          }

          public void reset() {
            enumerator.reset();
          }

          public void close() {
            enumerator.close();
          }
        };
      }
    };
  }